Screeching noise when 2 Peers in the same conference room are connected to each other
Reported by
leticia....@temasys.com.sg,
Feb 23 2017
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Issue descriptionUserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.74 Safari/537.36 Steps to reproduce the problem: 1. Open 2 tabs in apprtc.appspot.com for 2 Peers to be connected to each other in an enclosed room. You may use separate machines. 2. Hear a terrible screeching sound from the audio playback. What is the expected behavior? Audio connection to simply hear the other party without any other noises. What went wrong? Terrible screeching sound from audio playback. Tried enabling echo cancellation with ?audio=echoCancellation=true in the apprtc.appspot (which should set audio: { mandatory: { echoCancellation: true } }) but it didn't helped. Note that this screeching sound is not reproducible (or not prominent enough to be an issue) in Firefox 50+ browsers. Did this work before? N/A Does this work in other browsers? N/A Chrome version: 57.0.2987.74 Channel: beta OS Version: OS X 10.12.2 Flash Version:
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Feb 28 2017
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Mar 1 2017
Tested this issue on Mac OS 10.12 and Windows-10 using chrome Beta #57.0.2987.74 by following steps mentioned in the original comment, Observed no screeching sound from audio playback while connected to apprtc.appspot.com. Reporter@ Could you please let us know is this issue is specifically seen on M57 beta? Could you please check the same on chrome latest canary and update the behavior?
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Mar 1 2017
Some things to note is that I wasn't using headphones and that my volume was at 75% high. It's still reproducible with the current version. Is there anyway to reduce that?
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Mar 1 2017
Thank you for providing more feedback. Adding requester "brajkumar@chromium.org" to the cc list and removing "Needs-Feedback" label. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
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Mar 3 2017
Echo cancellation is supposed to suppress the sound from a machine's speakers when it reaches that machine's own microphone. The echo caused by machine A's speakers being heard by machine B's microphone can't be suppressed, at least not by the mechanism in WebRTC. So if some meeting participants are close enough to overhear each other, all but one of them needs to mute both speakers and mic. |
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Comment 1 by guidou@chromium.org
, Feb 27 2017